Sanctuary

You ward a creature with protective energy that deters attacks. A creature attempting to attack the target must attempt a Will save each time. On a critical success sanctuary ends; on a success the attacker can make that attack and any others against the target this turn; on a failure it can't attack the target and wastes the action, and can't attempt further attacks against it this turn; on a critical failure it wastes the action and can't attempt to attack the target for the rest of the duration. The spell ends if the target uses a hostile action.